APA (7th ed.) Zitazioa

Bellman, R. (1964). Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Zitazioa

Bellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Nueva York: Holt, Rinehart and Winston, 1964.

MLA (9th ed.) Zitazioa

Bellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston, 1964.